<?php
function wp_bootstrap_pagination()
{
 
    if (is_singular()) {
        return;
    }
 
    global $wp_query;
 
    /** Check number of pages **/
    if ($wp_query->max_num_pages <= 1) {
        return;
    }
 
    $paged = get_query_var('paged') ? absint(get_query_var('paged')) : 1;
    $max = intval($wp_query->max_num_pages);
 
    /** Add current page to the array */
    if ($paged >= 1) {
        $links[] = $paged;
    }
 
    /** Add the pages around the current page to the array */
    if ($paged >= 3) {
        $links[] = $paged - 1;
        $links[] = $paged - 2;
    }
 
    if (($paged + 2) <= $max) {
        $links[] = $paged + 2;
        $links[] = $paged + 1;
    }
 
    echo '<ul class="pagination justify-content-center mt-5">' . "\n";
 
    /** Previous Post Link */
    if (get_previous_posts_link()) {
        printf('<li class="page-item">%s</li>' . "\n", get_previous_posts_link());
    }
 
    /** Link to first page, plus ellipses if necessary */
    if (!in_array(1, $links)) {
        $class = 1 == $paged ? ' class="page-item active"' : ' class="page-item"';
 
        printf('<li%s><a class="page-link" href="%s">%s</a></li>' . "\n", $class, esc_url(get_pagenum_link(1)), '1');
 
        if (!in_array(2, $links)) {
            echo '<li>…</li>';
        }
 
    }
 
    /** Link to current page, plus 2 pages in either direction if necessary */
    sort($links);
    foreach ((array) $links as $link) {
        $class = $paged == $link ? ' class="page-item active"' : ' class="page-item"';
        printf('<li%s><a class="page-link" href="%s">%s</a></li>' . "\n", $class, esc_url(get_pagenum_link($link)), $link);
    }
 
    /** Link to last page, plus ellipses if necessary */
    if (!in_array($max, $links)) {
        if (!in_array($max - 1, $links)) {
            echo '<li>…</li>' . "\n";
        }
 
        $class = $paged == $max ? ' class="page-item active"' : ' class="page-item"';
        printf('<li%s><a class="page-link" href="%s">%s</a></li>' . "\n", $class, esc_url(get_pagenum_link($max)), $max);
    }
 
    /** Next Post Link */
    if (get_next_posts_link()) {
        printf('<li class="page-item">%s</li>' . "\n", get_next_posts_link());
    }
 
    echo '</ul>' . "\n";
 
}
 
